Speedometer.



J. W. JONES. srrinno mn'rnn. AHLIOATIOH "LSD I015, I907.

Patented Sept 22,1908.

25 View of the indicator,

30 view of the index shaft;

10 10, which 60 tion maybe imparted 6 part of the shaft 13 has looselythe Plvut screws 15,,

UNITED STATES EXTENT OFFICE.

JOSEPH w. mass, or NE trons, N. Y. i

. srssnomn'rs e l of tnachinerv, more particulartv automobiles and othervehicles, by means of indicating Int-ans opcrntivcly connected to thepropelling engine or other moving part of the machinery the speed ofwhich is to be meastired or indicated, and llreobjcet of the inventionis to pro'izle an nnprovcd form of device for amsomplishing the saidpurposes in a more ellicicnt andadvantageous manner than has heretoforebeen the ease.

The invention consists of the novel construction, arrangciiu-nt andcombination of parts hereinafter particularly des rilmd and shown on theaccompanying drawings.

In the said drawings, Figure l is a front a portion of the face brokenaway to show part of the interior construction; Fig. 2 is a sideelevation with the casing so broken away as to show the interior; Fig. 3is an enlarged detail plan Fig. 4 is an ci-ilarged detail view of therecord worm and wornl wheel; Fig. 5 is a front view carrying the indexshaft, showing its adjusting iucans; and Fig. 6 is a. view of the wormbeing 85 and worm wheel which drives the record dials.

Referring now to the said drawings, it will be seen that the principalworking ports of the indicator are inclosed within the. casing isprovided at its rear-with a coupling 11 adapted to attach it to abracket on an automobile or other object, this coupling being providedwith serrations to engage with cooperating serrations on the bracketso45 that the casing 10 may be placed at any angle to permit the faceplate to be conveniently inspected, and there secured.

The stem 12 of through some plays a shaft 13 to which moor one of thenio'viniparts of the engine by means of flexible s fting or otherisuitable means; not shown in the drawing but which will be readilyunderstood. The u pper pivoted on it s weight 14-h; means-of-Specification of Letters was. Appllcstlonfiled November 5, 1901 Sc l'i 1)lo'. 400,7".

of the frame Patented Sept. 22,1908. 7

l i and when the shaft rot atcs ccntrifugal action 1 causes the weightto assume a horizont position or inclination, more or less according tothe speed at which the shaft. is moving.

Loosely inountci'l upon the shaft 13 is a grooved wheel 10, having astem 17 in-whieh pin 19 projecting from the shaft, which orthe shaft, atthe some time causing it to 115- tate. 'lhis wheel l6 is connected withthe weight 14 by means ofa link 20. g It will be readily seen that asthe weight approaches toward the horizontal position, it wheel 16 upwardon the shaft.

At the front of thecasiri" 10 is a dial ms- 21, provided with a line ofnumerals represcot lngthespecd in tnilcs autolnobilc or other vehic-)l\'( llftl in brackets 22 at the front of the easnw is a shaft 23 whichcarries an index 24 ".1 apted to sweep over the dial face and thentnncrals, The shaft 23 csrricsa s ring 25 which encircles it and whichis sttac by one cod. The otherend of the spri is secured to the bracket22, the object of t is spring bring to return the index 24 to the zeromark on the dial whcrcitsinovcment rearstraddling the shaf t 23 andhaving at one en the casing is hollow and front the vehicle .tvheel aslot in which plnvs an eccentric stud 31 at the lower end of theadjusting screw 32. It will be seen that as this screw is turned, a.stud 31 throws the slide one way or end of the slide'ztl carries arearwardly pro jccting pin 33' with a collar 34 end,is provided at itsforward end with a nut 35, which, with the aidmf the collar not. onlylocks the any point it is adjusted after being set by the screw 3'2.

The pin 33 extends far enough the rearto enter the groove of the heel 16this is regulated by the speed at which'the.

is a slot 18 which permits the passage of I mils the sleeve 'to movelongitudinally a ong carries the 10 or hour which the l e is traveling,and 76 ed to it 80 ward is limitcdb) the pin 26. The shaft 23 86 (l 90the ot tel alongthcrear side of the plate. The other pin to the disk butalso secures the slide 29 nt 2) and as this wheel rises on thc'shaft.13, the 10 -insa i the mechanism is 3 rymg commutation dials 'ated tersPatent, is as fol! -intermediate a shafts:

shaft 13 is bei'n driven. It will be seen that theextent of t e sweep ofthe index corresponding to a iven vertical motion of the wheel 16 may evaried to some extent by the adjustmentvof the slide 29 hearing the pin33. As this pin is moved toward the center of the disk 26 the motion ofthe index relative to that of the wheel 16 is increased, and vice versa.The object of this part of to permit the'adjustment and regulation ofthe a paratus as circumstances inayreguire as or instance a variation inthe elasticity of the sprin 25.

At one side of the stem 12 are oxes 36 car- 37 which are opcrby the worm38 and worm wheel 39 (sci-' Fig. 6,) the former being carried on theshaft 13 and the latter driving the dials by the medium of the springconnection 40, one end of which sprin is connected with the worm wheel39 w ile the other and free end 4] plays in the teeth 42 and turns thelast commutator dial. When the series is completed the connection mayturn onward without cndangering the mechanism.- The dials may also heset with this arraiig'nient without the danger of disarrangement of themechanhe driving of these dials 37 is in the ism. ordinary manner, andit is not thought nec- .essary to give them further description orillustration. It is obvious that the construction of the device need-notbe confined to the exact details shown, as it may be modified as desiredwithout departing from the essential features above described andillustrat e'd Having thus described my invention, what claim as new anddesire to secure by Let ows:

1. In a speedometer, the combination with a shaft adapted to be drivenby the mechanism or vehicle the speed of which is to be measured, of adevice movable longitudinally on said shaft, means for im partingmovement to said device proportionately to the speed of the shaft, meansoperated by said lon itudinally-movable device for indicating tie extentof its longitudinal movement'and thereby the speed at which saidmechanism or 'veic e is be' o erated, and means intermediate the sailiingitudinally-movable device and the said indicating ineans adapted toad justably operatively connect the same toether; said indicating meanscomprising s aft bearing an index or means com fast on said index shaft,a pin operatively connected with said disk in the. slot thereof and alsooperatively connected with the said lon iti dinally-movable device onthe driven she t, and means adapted to move said in f id slot toward oraway from the in ex a t.

2. In a .the combination with driven by the mechaneedometer lfgted tobeseepage isin or vehicle the ment to sm speed of the longitudinal] theextent thereby the or veh cle is termediatc the said device and tl toad'ustably operativ toget ier; said indicatiizfg a shaftbearing an in exor said intcrine ally slotted o )orativel y siot thereof.

with the said lon 'it on the driven sha -mo'vablo device for itslongitudinal mov eing 0 rated and ie said indie diate means comp andalso operative] y peed at which said mechanism gitudinally-movable atingmeans adapted ely connectthe same means comprising pointer; and Ham diskon said index sh connected with said d speed of which is to be-,measured, of a device movable longitudinally 1 .on said shaft, meansfor imparting move device proportionately to the aft, means operated bysaid indicatin ement an means inv a radia t, a .pin isk in thrconnectedudinally-movable device it, a link adapted to move said pin in said slotradially toward or away from the index s for operating said lin In aspeedometer, t a shaft adapted to be dr ism or vehicle the s measured,of a weight and adapted haf t and pivoted on to rotate an eccentric camhe combination with iven by the mechanpeed of which is to be said shafttherewith, a grooved wheel on said shaft and adapted torotate therewithand to slide upon, a link longitudin connectin ally theresaid groo vedwheel with said wei ht, a shaft bearing an index or pom ter and a pinoperative] the slot thereo with said grooved whee to move said cure itthere a shaft ada caring connected with s and o ratively pin in said inat any desired the com 'a radially slotted disk,

aid disk in connected 10c and means adapted radial slot oint.

ination with the-mechanand toseism or vehicle the speed of which is tobe and adapted upon, a link in sai disk.

5. In a speedometer,

a shaft ada said shaft an therewith and to slide of a weight pivoted onsaid shaft to rotate therewith, a grooved long'itudin connectin earing aradially connected slotan t ted robe ism or vehicle the speed of whic adevice movable long tudinally measured, of

on said shaft, means to said device of the shaft,

for proportionately to me turlinally-movable device for indi extent ofthereby the or vehicle is 2?. its longitudinal move out and eed at whichsaid inc iiein'g operated, and

d adapted to rotate meansada ted to move the combination with driven bythe mechanimparting movement ally thereno said grooved wheel bearing anindex or slotted disk with sai o secure it means comprisin a link and anecce tric cam oumaled histobe thejpeed ans operated by said [on chanismI1188Il$ 111 13 iois a graduated dial and conneeled 211 of the shaft,means operated by said I termediate the said longitudinally-movabledevice and the said indicating means adapted to ndf'ustably operativelyconnect the some toget ier; said indicating means comprising a shaftbearing arr-index or pointer; and said intermediate means comprising atslotted disk fast on said index shaft, a Jill operatively wnnected withsaid disk in the siot'thereof and also operatively with the saidlongitudinallylnovnhle device on the driven shaft, and means adapted to'move said pin in said slut toward or nwa from the index shaft.

6. in n speei ometer, the combination with a shaft adapted to be drivenby the mechanism or vehicle the speed of which is to be nleusurml, of adevice movable longitudinally on said slmii, means for impartingmovement In said device proportionately to the tudinnl| '-|nuvu-hledevice for indicating extent of its longitudinal l'novement Ind therebythe speed at which said methan'nn or vehicle is being 0 erated, andmeans intermediate the said ongitudinally-inuvable device and the saidindicating means adapted to ad'ustnlily operatively connect the sametoget er; said indicating means comprising a. 'radnated dial amafitmfhbearm anin .ex or pointer; and said inter-me! iate means com)risi ng a radially slotted disk on said index mft, a pin 0 erativelyconnected with said disk in the s 0t thereof and also operativelyconnected with the said longitudinall movable device on the drivenshaft, a ink-adapted to move said pin in said slot radially tm'ard oraway from the index shaft, and'an. eccentric cam for operating saidlink. i

In witness whereof I have hereunto signed my name this fir t day ofNovember 1907, in the presence oftwo suhscribin' witnesses.

JOSEPH JONES.

Htnesses:-

Tnos. S. BARRETT, Airmen NicnoLs.

